Testing Furnace Gas Valve

Then screw in your manometer.

Testing furnace gas valve.

The manometer will give the reading in water column in inches. How to check the furnace gas valve with a multimeter step 1. Wait for the unit to cool if it has been in use. If playback doesn t begin shortly try restarting your device.

Locate the front lower access panel to the appliance. Turn off the gas supply valve to your appliance to test whether your valve is capable of shutting down properly. A solenoid valve that is filled with drudge might fail to open. If this doesn t work read the nameplate mopd rating.

Take out the bolts in the service panel on the side of the furnace using a nut driver. Turn the gas back on. Lastly a low voltage can be the problem for its failure to open. Disassemble the valve and clean it out with a brush or rag.

Screw back in the gas valve plug using a small amount of pipe dope. Set the thermostat or the device s controller slightly above the current room temperature. Turn the gas off. There should not be a flame up there if the valve is working correctly.

Locate the pressure tap on the gas valve and unscrew the plug. Unplug the appliance from the wall outlet. Locate the hot surface igniter and look for a spark or glow there. Turn on the furnace and start it.

Pull the wires off. Turn off the gas feed line valve to the dryer. Locate the gas valve. This one covers a simple way to find out if the gas valve is being energized on the newer gas furnaces.

The ratings listed must align with the pressure rating shown on the valve. Turn off the furnace at the wall control. Videos you watch may be added to the tv s watch history and influence tv recommendations. A simple measurement will tell you if your valve is bad or another part keeping voltage from the.

Great video troubleshooting this goodman furnace gas valve.